Roughage mill



March 29, 1932.

J. HOLLAND'L.

ROUGHAGE MIL Filed June 17, 1929 ETZ 2 Sheets-Sheet l 2 Yw 2@ (/M//a @m/eil.

JV FM www Patented Mar.r 29,` 1932 JoiNgionnANDj-Lnmzioni cRoWNiBoINT, AIrrinmrur;ieifssiorivcbia roemnfnmnrzu Manni-L 7 I EACTURINQ ooivmnmnniconponnmron oF INDIANA! RQUGHAGEMILL..

v I v ,n vApinitiation. merLJuneU,

The present* invention f relatesY tol a' cutting-4 and'4 grinding apparatus; orroughage A mill.

.'Gn of tlrefobjects oftherpresentiiiventin 1 isto'provide an yimprovedconstructl'c'in oigaY l@ Getting. and grinding mill iivlfieireby' the P311- veriged material" orA dust" arising, 'from the niaterialpassing into the cutten head, is fpre-v vented, from,passingrthroughithe millfso Athat i the e'iciency "and capacity of the machine .lois kincreased to a maximum. Y

A.l further object of the` invention is to provide a suction mechanism in combination with the cuttingand conveying mechanism whereby the dust created in the operation of cutting the silage or other material;

which islobje'ctionable to the operator is entirely eliminated. i y

A further object of the` invention is to l .provide a grinding ymill in which -a `suction casing is positioned over the cutter headk and over a portionoi the conveying mechanism adjacent thereto :for lwithdrawing the dust Vand dirt created-in the operation of feeding wvarious materials to the cutter head.

"' These and'other objects are accomplished by providing a construction and an arrangement of the various parts inthe manner hereinafter described and rparticularly pointed -vout in the appended claim.

Referring tothe drawings, Fig. l is an end elevational view partly in cross-section showing a V'roughage mill having my invention embodied therein. Y A Fig. 2 is a side elevational view partly in "cross section for thefroughage mill shown in Fig. 3 is a side elevational view of the suction'housing or casing' which extends overa f portion ofy the vcutter head and conveying 40"mechanism for withdrawing the dust and pulverized materials from` the material as it is being` fed into the cutter head.

Ther present invention is directed to an .1m-

fprovement on my co-pending application7 .ensear No. 180,085,l ,filed Ape l" 1927 for a cutting and grinding apparatus.

`After the manner Vdescribed and .claimedV in my co-pendingapplication7 the Ygrinding ...mill illustrated in the drawings7 comprises ama frame supporting. structure indicated byA the referenceV character 10,911 which'.is'mpunijf,I ed` in suitable bearingsjjll' almainshiaft l2; Mounted on the frame in anyk wellfY manner, iS a Glitter` headraSiHa .135111 Whiffchfis mountedand operatively'driven'by the l2jis`a cutter 'headllh Arraynge/djconceit;-l trically'around the lowerjsvideoftlie'- cutter` head2-i4 iS en( aperture/.li grate. 15;; through which, the materialpassesfintoj aA chute/j' or,k f-

operatively driven a suitable; t ai sears,'lgearedthezmain drive Mountejdonthe one lend"V offthe shaft"Y and@ operativelyV 'driventhereby; is ay grinding mechanism generally indicatediby the refer-gfy ence character: l9f.f Mounted adjacent' the; grindin'gr` mechanism lgf andseeUredfto the;V "shaft112- 'sa conveyorV screw'20, .oven-Which.' 70 is `mounted'a.'hopp'er `2l'throngliE i whichgraiirf maybepinsertedpf i, Mountedfbetweentliesci'eiv? 2O fand the cutter*k head* 18?' is ani e'levatingj screw 22 ,which is positioned abovea'reniov'- 3f.,

able platef23*which-may 'be removedfor, 75'

- opening" communication'.betweenthe trough' liand `Ethe elevatingscrewu 22E.k kMounte'd tween"V the f cuttiirgj` vmechanisin 19? and;v the; conveyor trough; llE y is a' pneu maticV mechanism which comprises afan-casingll; Mounted-in Vthe casing24 is a; risvoltingfsumy l tion ,orf mixing fan 25"V which; isgsecuredzfon Oil@enfinfeisiifif26i ,"Ciiiiimimii'iiiienith; thergrinjdingmechanism and the-'niixingclase' y ing 24 is ai conduit- 27jI through: which .the S5 ground materialisied 4into the axial*centerx of lthe yCasing'jon one si de thereof.-v Comin-unicatingjA witlrone end of the trough 16 f isl a second-,conduit 2S-Which communicates with*v the` other: side ofthie axial center offftheciasl` QL-Lv y p. Y man xtendingj 'tangentially` the fan cas'- ing 24* is* a: vertically l'exten-ding 'oondiit* S30? thro-ughwhichthe material may beelevated'`' into-an elevated receptacle or container: Efx-y 9' tending forwardlyI from tlie ifront'sidei of 'the frameiof thef-maehine from Lagpfeiinti adj acent tliefrevolv-ing i cutters.` hie ad la fis a conveyor; platfrnrl'ori which"isiinountedan endless! is conveyonbelti whiehf'isftrained aboutitwo-l00 so A' rollers 33 mounted on the opposite ends of the conveyor platform (only one of which is shown in Fig. 2). Mounted between the inner roller 33 and the cutter head 14 is a supplemental relatively larger or idle roller 34. Positioned adjacent the delivery end of the conveyor belt 32 is a floating feed conveyor generally indicated by the reference character 35 which comprises a relativelystationa-ry revolving roller 36 and a rearward floating larger roller 37.

One of the essential features of the present invention is the provision of a suction housing generally indicated by the reference character 38 which is adapted to lit over the side frame members 39 of the conveyor frame 31 and completely encase the iioating feed belt 35 ras well asthe delivery end of the conveyor belt 32. rlhis suction housing has its upper side inclined downwardly as shown at 39 and is provided with a rearward verticallyextending wall 4() which has its lower end secured to a flange 4l formed on the top or cover 42 of thet cutter head housing. Communicating with the suction housing 38 and preferably to the vertically extending wall 40 is a suction conduit 43 which in turn is connected through an elbow 44 to the mixing fan casing 24. A portion of the cover 42 of the cutter head housing is provided with a plurality of apertures as indicated at 45 so as to permit the pulverized or dust parf ticles to be withdrawn from within the cutter head housing so as to prevent this material from passing through the cutter housing grate l5. This arrangement, of course, increases the capacity of the machine in that it eliminates the smaller particles from cloggirligg the grate.

rom the above description it will be seen that by having the suction housing 38 com pletely embrace the floating feeder belt 35 as well as the delivery end of the conveyor belt 32 and at the same time permitting the dust particles to be withdrawn from within the cutter head casing that I have provided a very eflicient means for eliminating the dust and dirt (objectionable to the operator) from being spread in all directions adjacent the mill and thereby increase the capacity of the machine.

While in the above specification I have described one embodiment which my invention may assume in practice, it will, of course, be understood that the same is capable of modification and that modication may be made without departing from the spirit and scope of the invention as expressed in the following claim.

What I claim as my invention and desire to secure by Letters Patent is:

In combination with aroughage mill, a cutter head for said roughage mill, a casing for said cutter headhaving a portion of the top thereof provided with a plurality of apertures, a conveyor frame mounted on said mill having an endless conveyor belt mounted therein for conveying the material to said cutter head, said conveyor frame having vertically extending sides positioned adjacent the delivery end thereof, afloating feed belt mounted between the sides of said conveyor frame and positioned over the delivery end of said conveyor belt, a suction mechanism associated with said mill and a housing hav-A ing an inclined top communicating with said suction mechanlsm and positioned above said floating feed belt, said housing being support- 

